GB1314640A - Diamond cut - Google Patents

Diamond cut

Info

Publication number
GB1314640A
GB1314640A GB5261771A GB5261771A GB1314640A GB 1314640 A GB1314640 A GB 1314640A GB 5261771 A GB5261771 A GB 5261771A GB 5261771 A GB5261771 A GB 5261771A GB 1314640 A GB1314640 A GB 1314640A
Authority
GB
United Kingdom
Prior art keywords
cut
base
diamond
lunula
girdle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5261771A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOOSTES DIAMOND CUTTING WORKS
Original Assignee
JOOSTES DIAMOND CUTTING WORKS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JOOSTES DIAMOND CUTTING WORKS filed Critical JOOSTES DIAMOND CUTTING WORKS
Publication of GB1314640A publication Critical patent/GB1314640A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/001—Faceting gems

Abstract

1314640 Diamond cut JOOSTE'S DIAMOND CUTTING WORKS (PTY) Ltd 12 Nov 1971 [1 Dec 1970] 52617/71 Heading A3H A cut diamond comprises a girdle with at least three long sides 11, an equal number of short sides 12 at the intersections of the long sides, a table 6, crown breaks of the emerald-cut type 7, 8, 9, and a base which is substantially pyramidal in shape. The base has a collet 10, a lunula 13 bordering each long side of the girdle, a point comer 16 extending from each short side along ridges of the base pyramid, two halves 14, 15 to each side of each point corner, and a pavilion 17 penetrating between each pair of halves and having an apex at a bounary of a lunula.
GB5261771A 1970-12-01 1971-11-12 Diamond cut Expired GB1314640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA708135A ZA708135B (en) 1970-12-01 1970-12-01 A new diamond cut

Publications (1)

Publication Number Publication Date
GB1314640A true GB1314640A (en) 1973-04-26

Family

ID=25562774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5261771A Expired GB1314640A (en) 1970-12-01 1971-11-12 Diamond cut

Country Status (8)

Country Link
US (1) US3796065A (en)
JP (1) JPS5013708B1 (en)
BE (1) BE775964A (en)
DE (1) DE2158857B2 (en)
GB (1) GB1314640A (en)
IL (1) IL38158A (en)
NL (1) NL148255B (en)
ZA (1) ZA708135B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51131552U (en) * 1975-04-14 1976-10-23
US4020649A (en) * 1976-05-27 1977-05-03 Henry Grossbard Brilliantized step cut diamond
US5072549A (en) * 1986-09-22 1991-12-17 Harold Johnston Method of cutting gemstones and product
US5186024A (en) * 1992-02-03 1993-02-16 Dorothy P. Waters High brilliance step-cut stone and method of making same
DE4210995C2 (en) * 1992-04-02 1997-04-03 Ulrich Dr Freiesleben Cut gem, especially diamond
JPH07108007A (en) * 1993-10-13 1995-04-25 Daiwa Kako Kk Ornament
US5761929A (en) * 1996-09-12 1998-06-09 M. Fabrikant & Sons, Ltd. Facet cut structure for colored stones to enhance brilliance
CA2206353C (en) * 1997-06-11 2006-01-03 Guy Couture Butterfly shaping
US5970744A (en) * 1998-12-01 1999-10-26 Tiffany And Company Cut cornered square mixed-cut gemstone
USD423396S (en) * 1999-04-26 2000-04-25 Wolf Steven J Gemstone
US6615611B1 (en) * 2000-09-26 2003-09-09 Michael Schachter High yield diamond
US7146827B2 (en) 2001-05-18 2006-12-12 Diamond Innovations, Llc Mixed cut gemstone
IL146079A (en) * 2001-10-19 2004-06-20 Michael Kedem Rounded rectangular gemstone
JP2009142455A (en) 2007-12-14 2009-07-02 Juho:Kk Diamond, diamond-shaped jewelry, and its cutting method
US9226554B2 (en) 2014-05-12 2016-01-05 Yoshihiko Kodama Circular cut diamond
USD827485S1 (en) 2016-07-06 2018-09-04 Bonoli S.R.L Gemstone
USD878964S1 (en) * 2016-10-10 2020-03-24 Bonoli S.R.L. Gemstone
US10448713B1 (en) 2017-07-28 2019-10-22 Brian Steven Gavin Emerald-cut diamond
EP3804553A1 (en) * 2019-10-10 2021-04-14 D. Swarovski KG Cut for a gemstone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009390A (en) * 1934-03-06 1935-07-30 Bayardi Brothers Inc Cut diamond
US3286486A (en) * 1964-01-10 1966-11-22 Huisman James Diamond with specially faceted pavilion

Also Published As

Publication number Publication date
US3796065A (en) 1974-03-12
JPS5013708B1 (en) 1975-05-22
ZA708135B (en) 1972-07-26
IL38158A (en) 1974-01-14
NL148255B (en) 1976-01-15
DE2158857A1 (en) 1972-06-08
DE2158857B2 (en) 1974-03-14
IL38158A0 (en) 1972-01-27
DE2158857C3 (en) 1974-10-10
BE775964A (en) 1971-12-15
NL7116496A (en) 1972-06-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee